Car-underframe.



V. M. SUMMA.

CAR UNDERFRAME.

APPLIGATION FILED MAR. 31.41910.`

Patented July 8, 1913.

In uen'or rJ. Summa mix/4H vTo all wlwm it may concern. .Be it kno .vn that l I, -Vioroa M. SUMMA;`

f .UNiTnn sTaTns PATENT .clarion VICTOR IVI. SUMMA,. F SCll. LOUIS, MISSOURI, l'ASISIGllll'QR TG AMERICAN CAR AND FOUNDRY COMPANY, 0F LOUIS, MISSOURIMA CORPORATION QF yIISTEVVjl'IERSEY.

can-UNDERERAME.

Specification of Letters iatent.

. Applicatign led March 31 1910. ,Serialli'm 552,507.

residing at St. Louis, Missouri, and being ai citizen of the United States, havelnvented` certain newV and -useful Improvements -ln `Car-Underframes, of which the following is a full, clear, and exact description, such las will enable others skilled in the art to,

Vwhich it appertains to make and use the Amodifications thereof .will occur to .persons skilled inthe art.

.In said. drawings: .Figure il is. xapian view .cfa fragment of aiminderframe, .showing one end ot'ythe center-.sill .and-,fragments of.

contiguous parts. tltlig. .2915.11 lon itudinal vertical' section taken on the plane` indicated by line 2-2 of Fig. 1. llig is a transverse vertical section taken on the' plane indicated by line 3 3 of Fig.-2.

Referring to the drawing by numerals: 1 indicates a center sill of the cast single beam type, bifurcated at its ends, forming the arms 2, 2, outstanding from theouter faces of whosel webs are the bolster daphragms 3, 3p Each oi said diaphragms 1s formed at its inner end with laterally ex-` tending flanges 4, 4, the innerend of each l diaphragm being formed with a notch for accommodating the lower' flange of the respective .draft sill 5,-each flange 4: conforming to the contour of said notch as indicated at 4. The draft. sill 5 extends outwardly .and is fixed to the end sill G, the inner end ot each sill 5 extending along the respective arm 2 for the full width of the bolster and being secured thereto by rivets passed through the web of the respective sill 5,y

and the web of `the corresponding arm 2 and also by rivets. extending through the flange 4 and the web of the corresponding arm 2, the respective diaphragms 3 being also connected to the given arm 2 by additionalA rivets extending through the web of said `arm and throughthe'lange 4 beneath the lower; flange. of thenespective sill 5. A top coverplate .7 connectsthe diaphragms 3 and extends 'through horizontal slots 8, 8 in the webs 9fjI'1I1`S2, and v--thlollgll similar slots y.sion member of the bolster.

Patented J illy 8, 1913.

9 in sills 5, the cover late 7 being riveted to the upper-*horizontal ,flanges of the di'aphrag The bolster is completed by center bear ling castingfformed ofthe center bearing l0 .lowerihorizontal flanges of the arms 2, and

in practice serve as a portion of the corn pression` chord of` tliebolster, thus-relieving Y therivets-engaging flanges 11 of the greater portion of the shearing stresses incident to this.member. Itwvill be noted thatthe biurcatedarnis 2fit between the bolster dia-- phragns, and that the lower portion of these arms together constitute the compres- Thetop plate` 7 forms partof the tension member of the bolster and passes through the said ,compression member.

Owing to=thcrpeculiar construction of the arms 2 of the center sillfand the co-incident slots 8-8 in said arms 2 and in therearward extensions ofthe draft sills 5, I am ableto assemble the parts of my improved underrame in `very lconvenient manner. Thus, owingto said slots, it is possible to slip the draft, sills into position after the bolster parts a-reassembled and the bolster, with connected 4top cover. plate 7, is placed'in position .with reference tothe center sill.`

Thus the bolster maybe assembled as a. unit before it is brought into juxtaposition to the center sill', after `which the draft sills may be placcdin position and the parts connected by ,through rivets 15, which connect the draft sills and the arms 2 of the center sill, and the rivets 1G, which connect the 'bolster diaphraigms with the draft sills and `said.centersills, may be driven, as likewise i the-cdincident lslots in the bolster diaphragms 'placed and riveted and, lastly, the bolster cover plate. placed in position and riveted tothe toplanges of the bolster diaphragms. In either levent the center. sill and draft sills receiving the top cover plate of the bolster are a greatadvantage 'in assem-f bling-.the structure. .f .W liatIclaimis I 1. 'I-n ja car underframe, the combination with a bolster, of al single beam center sill longitudinally slotted to itsl ends and the slotted portion lapping the bolster.

2. In alcar underframe, the combination withv a bolster, of a single beam slotted tol its ends and having the slotted portion extending across yand between parts of the bolster. v. 'i

l 3. Ina car underframe, the combination with a bolster, of a center sill slotted longi?. tudinally -to its end and being connected' at each side of its yslottedportion directly to 'the bolster.l ,l 'j 4. In'la carunderframe, the combination with a bolster, of a center sill longitudinally slottedto its ends, and having the parts vthereof nearthe slot secured to and extendino* between parts ofthev bolster, and draft 1 sills connected to the slotted portion of the center. sill.

5.'In a car underframe,'tlie combination lwith a bolster, of'a center sill terminating in spaced slotted portions at its endand having the spaced portions extending through and secured tothe bolster, and/draft sills connected to said' spaced portions.

6. In .-a car underframe, the combination with a bolster of a single beam center sill, bifurcated at the end and having.. the arms of the bifurcation extending through and terminating ysubstantially at the bolster, Vand draft sills extending through the bolster and fixed to the bolster and tothe arms of the bifurcation.

7.11am car underfralne, thecombination of a singlebeam center sill longitudinally slotted lat the ends, bolster diaphragms connected to and lapping the ends thereof, in combination with a continuousV bolster cover ing from the arms of said bifurcation substantially atthe ends of said arms, and a fof vsaid sill, 1n combination connected by a continuous u `projected into center sill from the center bearing and .betweenthe spaced ends of the sill.

plate connected -With said slotted portion 1n4 a plane belowthe slots, and a top coverv the lower edges ofv said diaphragms andv cover late for said diaphragms extending. througllisaid arms. 10. In a `car Vunderfra'me, a center sillcomprising spaced yend portions which are slotted longitudinally. to, their ends and draft sills lapping the` slotted yend portionswith av bolster. having vertical. portions spaced apart and per portion andfextending hrough said slotted spaced end portions of the center s ill, j and havmg an intermediate lower port-ion corlmected to the spaced end Vportions of the sils.V l

" 11. In a car -underframe, thecombina- 30 tion of a center sill' having spaced end portions, said ends being longitudinally slotted, bolster diaphragms fixed to and outstandingv from the slotted portion, a center bearing having flanges extending therefrom secured 8.5' to the'diaphragms, and a blockv upstanding 12. In a car; 4undei'frame, the combiiiatou with a bolster of a single beamA center sill vbifurcated at the end, tlie arms of the bifur cationbeing yspaced apart and their flanges l facing inwardly, channel,l draft 'sills havingl their-'flanges facing outwardly and their webs contacting with the respect-ive webs of the bifurcation, and Vmeans for-securing the webs lof said arms to the webs, of said draft sills. l L

13. In a car underframe, a. air of slotted draftisills, a slotted center sill, vsaid center 10o :sill having its webs fixed yto said draft sill sv and the-slotted portions of said sills lapping'. Within a bolster, in combination ',Witli. a bolster having. a continuous member extending through-said slots.' l

14, In a car underframe, the conibiiiatin with a pairof draft sills, of a center sill lapping'and fixed to said drattsills, lone of said sills being slotted longitudinallytofits end, .and a bolster fixed to said cent-er sill 110 and a'continuous moniberof' said bolster eitvtending through the slot, `said `bolster .including a separately formed central flanged portion andside 'extensions secured-thereto.

'draft sills, of a single center sill slotted to its end. said center sill having its web bifurrated and fixed -to said vdraft sills, bolster diapliragins fined to said center sill at the point of connection Awith said draft sills. and a center bearing plate connecting said bolster diapliragms. 16. In a. car undeiframe, the combination with a pair of draft sills, of a single I-beam center sill, said center. sill havingits web vbifiii'ca'ted and fixed to said 'draftsills` bol-y 1 ster diapliragins lixed to 'said'centei' sill at fthe point of connection with said draft sillsl and a cover plate connecting saidbolster snugly fitting I 15. In a car underfraine, the coinliiiia'tioa H5; with a pair of longitudinally slotted 17. In a `ar underframe, the combination,

` with alpair ot' draft sills, of a single I-beam center sill, said center sill. having its 'web bi- .furcated and fixed to said draft sills` bolster diaphragms fixed to said center sill at the point of connection with said draft sills, and a cover plate connecting said `bolster diaphragms and extending through the connected portions of said draft and center sills,

18. In a car under'lirame, the combination of a single bean'rcenter sill bifurcated at the end, bolster diaphragms connected to the arms of the liifurcation, and d 'aft sills connected to the arms of thc bifurcation, said diaphragms having portions adapted to receive portions of said draft sills.

19. .Ina car underframc, the comliiination with a bolster, of a center sill longitudinally slotted at its ends, the end of the sill having spaced portions, a continuous bolster member extending through the slotted parts of the sill, a ,center bearing, and means formed upon said center bearing projcctiilg between the spaced parts of said sill and constituting a portion of the con'ipression chord of the bolster l Q0. In a car underframc, a center sill, a bolster comprising spaced 'diaphragms cured thereto, a center-bearing and means formed upon said center-bearing projecting between said diaphragms and constituting a portion of the compression chord of the bolster, and a tension member for said bolster extending through said center sill.

2l. In an underframe for cars, the combination comprising a single center sill with bifurcated end portion, and draft sills lapping said bifurcated portion, the lapping portions having co-incidcnt slots, some of which are open to their end. and a built. up bolster intersecting Ynid lapping members.

') In a car underframe, a bolster comprising spaced diaphragms and a compres- I sion member forming part of the ,center sill connecting said diaphragms, and a bolster tension member extending through said compression member.

23.' In an underframe for cars, the combination comprising lapping Center sill and draft sill provided with (io-'incident slots extcnr'ling throughout the major portion of the lapping portion of lboth members, and a` built-up bolster connected directly with said lapping portions and having a cover plat-e projecting through said co-ineidcnt slots.

Qli. In a car underframc the combination o't' longitudinally slotted and longitudinallyr separable center sill and spaced draft sills, having slots co-incidcnt with the slots' in thc center sills, and a built up bolster connecting said separable center and draft lsills.

Q5. In a ear underframe the combination o l" longitudinally slotted and longitudinally separable center sill and spaced draft sills, havngslots eti-incident with the slots in the center sill, and a built up bolster connecting said separable center and dra-ft sills, a 'part ol'` said bolster occupying said co-incident slots.

Q6. In a car undei'frame, a single center sill with biturcatcd end portions, spaced draft sills lapping the bifurcated ends of said center sill, and a built up bolstersecured to said draft sills by rivets which connect the draft and center sills, said holsters serving as draft sill chairs. i

27. In a car nndertrame, a center sill, a bolster, andY draft sills of less depth than said center sill, the bolster comprising spaced dia phragms which diaphragms are provided with pockets intermediate the top 'and bottom thereof adapted to contain parts of said draft sills.

:28. In a car underframe, a center sill, a

bolster, and dra-ft sills out less depth than said center sill,the bolster comprising spaced diaphragms which diaphragms are pro: vided with pockets intermediate the top and bottoni thereof adapted to serve as supports for said draft sills, in combination with means for connecting ysaid spaced bolsterdiaphragins. i

Q9. In a car under-frame, a center sill, a bolster, and draft sills of less depth than said center sill, the bolster' comprising spaced dia pl 1agms which diaphragms are provided with seats or pockets intermediate their height adapted to serve as supports for said draft sills, in combination with means extending through some of said sills for cor.-

nectiug said spaced bolster diaphragms.

30. In a car undcrtame, a center sill, a bolster, and draft sills of less depth than said center sill, the bolster comprising spaced diaphragms provided with seats or pockets adapted to serve as supports for said draft sills, said bolster diapluagms being connect.

ed directly to said center sills below said draft sills.

3l. In a car underframe, the combination comprising center sill, a bolster including spaced diaphragms in contactwith said center sill and secured thereto, and spaced draft sills connected with said center sill both fors wardly and rearwardly o'l." said bolster.

3Q. In a car underi'rame, the combination comprising center sill, spaced draft sills se# cured directly to said center sill and spaced bolster diaphragms secured directly to said center sill in diil'erent planes, and means for connecting lapping portions of the draft sills and bolster diaphragms with said center sill.,

fill. In a car nndcrframc, the combination comprising center sill, and spaced bolster to receive and support spaced draft sills into receive and i 'termediate' the height of 'said diaphragm,

34g. In a, eariinderiieme, the combination s comprisingcenter sill, and spaced bolster diaphragme; adapted to serve as sill chairs cover plate extending through said draft' 10 sills and connecting said diaphragms.

35. In vn car underframe, a built-up bolster comprising spaced diaphragms, a, filler for said bolster constituting part of the compression member of the same, and a tension n support spaced draft sills of` less deptlylthan said center sill, and a bolster part of the bolster passing through a, part of said compression member.

36. In .a car underframe, a bolster, s center sill constituting part of' the compression member of the bolster and a, bolster tension member passing through said compression member.

In .Witness whereof I have hereunto 'set my hund in the presence of two witnesses.

OSCAR HOCHBERG, CHARLOTTE MrrzE,

Copies of this patent may be obtained for ve cents e ch, by addressing the Commissioner of Patents,

Washington, D. C. 

